During May 2025, Sebastián Rendón improved documentation quality in the javascript-tutorial/es.javascript.info repository by addressing a translation inconsistency. He identified and removed a redundant English code block from a Markdown file that had already been translated, ensuring the documentation remained consistent and clear for Spanish-speaking readers. Using Markdown and leveraging his documentation skills, Sebastián focused on reducing translation drift and potential reader confusion. His targeted cleanup enhanced the maintainability of the repository by keeping the content aligned with its intended audience. The work was limited in scope but demonstrated careful attention to detail and a commitment to documentation accuracy and clarity.